Mine just needs a custom map to finish,is running 034 motorsport cat with a ebay 064 ko4 flange welded on,a full milltek,custom fmic,custom tip,s3 injectors,rs4 fuel rail valve,hpfp,rebuilt motor with intergrated rods,uprated bolts etc.St3 rs4 clutch and steel clutchmasters smfw,plus devils own water/meth injection kit.